. >> you too. >>> one of the worst days in nasa history took place ten years ago today. it was on this date in 2003 that the space shuttle "columbia" broke up over texas during reentry. all seven astronauts were killed because unknown to them debris hit the shuttle wing during the launch. this morning, nasa pays tribute to the crew of "columbia" along with those killed in the "challenger" explosion and in a fire during an "apollo 1" test. a wreath is being placed at the memorial at the kennedy space center in florida. >>> the man who says he presented to be manti te'o's girlfriend is speaking out. why he decided to kill off the persona he created. he says it was partly because he was in love with te'o. >> me, ronaiah, i was hurting. it hit me like a brick wall. i was like, whoa, i've given so much to this. and i realized in that moment i poured so much into it that i, myself, wasn't getting nothing. and look at what i was left with. i was crying that morning, i was hurt, emotionally, all kinds of things took over. and so right then and there, i made the decision i can't do this thing anymor